My Neighbor Seki となりの関くん (Tonari no Seki-kun)

Alternative Name: 上课小动作 (Shàng Kè Xiǎo Dòng Zuò)

Genre: Comedy, Slice of Life, School, School Life

Description: 

In the middle of class at a certain school, Rumi Yokoi, a diligent student, has her in-class life turned upside-down when her next-door desk mate "Seki" (full name Toshinari Seki) begins to play by himself at his desk in class. Although Yokoi is irked by Seki's distracting yet intricate playtime, she finds herself being drawn into his interesting hobby. Never being able to focus, Yokoi observes Seki's stunning ways of slacking off in class.

Episode: 21 + 1 OVA + 2 Special

Original Run
Series: January 5, 2014 – May 25, 2014
OVA: January 4, 2014
Special: May 28, 2014

Studio: Shin-Ei Animation

Television Drama: July 27, 2015 – September 14, 2015 (8 Episodes)

List of Songs (directly to CrimNight Muse Garden)

1. Meiwaku Spectacle             [Opening]

2. Set Them Free                     [Ending]

Tonari no Seki-kun no CD
1. Danran! Root Kazoku
2. Tsubasa wo Kudasai
3. Kyoushitsu Musical

Manga

1. Tonari no Seki-kun

Published: July 5, 2010 – Ongoing  

Volume: 10

2. Tonari no Seki-kun Junior

Published: July 4, 2020 – Ongoing  

Volume: 1

Here is the preview: